What is it about?
The hippocampus is the brain's cognitive map, so damaging it produces spatial memory deficits in rats. However, we found that the amount of damage is not related to deficit severity. Instead, a subgroup showed intact performance despite extensive hippocampal damage.
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Why is it important?
Our findings challenge the long-standing view that spatial memory is uniquely dependent on the hippocampus, suggesting that other parts of the brain are capable of supporting spatial memory in absence of the hippocampus.
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This page is a summary of: Evidence of allocentric spatial learning in male rats with large lesions of the hippocampus, PLOS One, March 2026, PLOS,
DOI: 10.1371/journal.pone.0344593.
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